72769430 has 32 divisors (see below), whose sum is σ = 138348000. Its totient is φ = 27482112.

The previous prime is 72769427. The next prime is 72769441. The reversal of 72769430 is 3496727.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84884 + ... + 85736.

It is an arithmetic number, because the mean of its divisors is an integer number (4323375).

Almost surely, 2^72769430 is an apocalyptic number.

It is a pronic number, being equal to 8530×8531.

72769430 is a deficient number, since it is larger than the sum of its proper divisors (65578570).

72769430 is a wasteful number, since it uses less digits than its factorization.

72769430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 72769430 is about 8530.4999853467. The cubic root of 72769430 is about 417.4934417558.

The spelling of 72769430 in words is "seventy-two million, seven hundred sixty-nine thousand, four hundred thirty".